Links w/ Octicons

[emilybrick]

Right now, it's not immediately clear how to style an Octicon when it's paired with a link.

Should the Octicon be wrapped within the link, and have the same color/hover states applied? Or should the link color/hover color behave independently of the icon it's paired with.

Examples:

[jhuashao]

I remember seeing this a whole lot when working on button usage guidelines. I think this should be an entire section in itself as it's so expansive.

I think it'd be also helpful to to add a small sub-section in the button guidelines regarding this topic of Link Usage and link to it.